Dell Latitude 5420 Owner's Manual page 234

Internal Allows you to set
HDD-0 or change the
Password system's internal
hard-disk drive.
Default Setting:
Not set
Password Allows you to
Bypass enable or disable
the permission to
bypass the System
and the Internal
HDD password,
when they are set.
The options are:
Default Setting:
Disabled
Password Allows you to
Change enable the disable
permission to the
System and Hard
Drive passwords
when the admin
password is set.
Default Setting:
Allow Non-Admin
Password
Changes is not
selected
NOTE:
Successful
password
changes take
effect
immediately.
Disabled
Reboot
bypass